
a=int(input())
if a>=1800:
    print(1)
elif a>=1600 and a<1800:
    print(2)
elif a>=1400 and a<1600:
    print(3)
elif a>=1200 and a<1400:
    print(4)
elif a>=1000 and a<1200:
    print(5)
elif a>=800 and a<1000:
    print(6)
elif a>=600 and a<800:
    print(7)
elif a>=400 and a<600:
    print(8) a=int(input()) a int(input()) int input() input if a>=1800:
    print(1)
elif a>=1600 and a<1800:
    print(2)
elif a>=1400 and a<1600:
    print(3)
elif a>=1200 and a<1400:
    print(4)
elif a>=1000 and a<1200:
    print(5)
elif a>=800 and a<1000:
    print(6)
elif a>=600 and a<800:
    print(7)
elif a>=400 and a<600:
    print(8) a>=1800 a 1800 print(1) print 1 elif a>=1600 and a<1800:
    print(2) a>=1600 and a<1800 a>=1600 a 1600 a<1800 a 1800 print(2) print 2 elif a>=1400 and a<1600:
    print(3) a>=1400 and a<1600 a>=1400 a 1400 a<1600 a 1600 print(3) print 3 elif a>=1200 and a<1400:
    print(4) a>=1200 and a<1400 a>=1200 a 1200 a<1400 a 1400 print(4) print 4 elif a>=1000 and a<1200:
    print(5) a>=1000 and a<1200 a>=1000 a 1000 a<1200 a 1200 print(5) print 5 elif a>=800 and a<1000:
    print(6) a>=800 and a<1000 a>=800 a 800 a<1000 a 1000 print(6) print 6 elif a>=600 and a<800:
    print(7) a>=600 and a<800 a>=600 a 600 a<800 a 800 print(7) print 7 elif a>=400 and a<600:
    print(8) a>=400 and a<600 a>=400 a 400 a<600 a 600 print(8) print 8 a=int(input()) int(input()) a

a=int(input())
if a>=1800:
    print(1)
elif a>=1600 and a<1800:
    print(2)
elif a>=1400 and a<1600:
    print(3)
elif a>=1200 and a<1400:
    print(4)
elif a>=1000 and a<1200:
    print(5)
elif a>=800 and a<1000:
    print(6)
elif a>=600 and a<800:
    print(7)
elif a>=400 and a<600:
    print(8)